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Many isolated appearances of pied or variegated budgerigars were reported in Britain, in continental Europe and in Australia in the late 1920s and early 1930s, [4] but reliable reports of breeding results and detailed descriptions of their appearance during that period are rare.
The mutation now known as the Dominant or Easley Clearbody was first described [3] by its breeder, C F Easley. He said, "The body colour is changed from blue or green to white or yellow and the wing barring, flights and shaft feathers become jet black.
The Clearwing budgerigar mutation is one of approximately 30 mutations affecting the colour of budgerigars.It is the underlying mutation of the Clearwing variety, often known as Yellowwings in the green series and Whitewings in the blue series.
In fact, the similarity of the Anthracite to the English Grey is striking. The description is virtually identical, and the cobalt appearance of a Skyblue with a single Anthracite factor is exactly what was suspected for the English Grey. The interaction of the Anthracite and Dark budgerigar mutations has not yet been investigated. It is ...
The history of the English Grey begins in 1933, when Mr T Watson of Bedford, England, discovered and purchased a hen of a slatey grey colour from a dealer.This may or may not have been an English Grey, as Mr Watson failed to establish the strain, but his report in 1935 [3] of the bird's existence prompted both Mr E W Brooks of Mitcham, Surrey to report his breeding of Greys from two Cobalts in ...
The English Fallow is an autosomal mutation causing recessive changes to the form of the melanin pigment. There is no universally accepted genetic symbol for either the locus or mutant allele, so the simple symbol fe + will be adopted here for the wild-type allele at this locus, and the symbol fe for the English Fallow mutant allele, in keeping ...
The wildtype (natural-coloured or wild occurring) budgerigar's color is called Lightgreen. The feathers of most parrot species, including budgerigars, contain both a black type of melanin named eumelanin along with a basic yellow pigment named psittacofulvin (psittacin for short).
There is no universally accepted genetic symbol for either the locus or mutant allele, so the simple symbol r + for 'recessive' will be adopted here for the wild-type allele at this locus, and the symbol r for the Recessive Pied mutant allele, in keeping with the symbol used by Taylor and Warner [8] and Martin.